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  1. Wiring questions with new Honeywell wifi - Zone 1 impacting Zone 2

    HVAC
    I've been struggling trying to figure out the wiring of a new thermostat. Oil, forced hot air and AC. The existing system has 6 wires. It is running off of a EWC-ST-2E control system. - Pic of manual attached. Wiring of existing system in the attached files. I tried to install a new...
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